In Ascomycetes conidiophores may be closely packed and organized into definite fruiting bodies. When fruiting body is hollow, nearly globose or flask-shaped and pseudoparenchymatous walls are lined with conidiophores, it is called

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HPSC Assistant Professor 2018 Botany (Official Paper)

Answer 1

The correct answer is pycnidium

Explanation:

In Ascomycetes, conidiophores may be closely packed and organized into definite fruiting bodies. When the fruiting body is hollow, nearly globose or flask-shaped, and the pseudoparenchymatous walls are lined with conidiophores, it is called a pycnidium.
Pycnidia are specialized asexual fruiting bodies that produce conidia (asexual spores). They are an important structure in the life cycle of many fungi, especially those in the class Ascomycetes.

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Fig: Vertical section of Pycnidium

Other Options:

Synnema

Synnema (also known as coremia) are structures where conidiophores are aggregated into a column-like structure. They do not form hollow, globose, or flask-shaped bodies.

Acervulus

Acervulus is a type of asexual fruiting body that is typically a flat, saucer-shaped structure, not hollow or globose. It forms just beneath the epidermis of the host plant and erupts through the surface to release conidia.

Sporodochium

Sporodochium is a cushion-like structure where conidiophores are closely packed. It is not hollow or flask-shaped, and it forms a more solid structure compared to a pycnidium.